cc/gcc: remove 'sub-level' version form symbols

Now we use defconfig files to store the samples, we have to be a bit more
conservatives in the symbols names, so as to avoid gigantic version bumps
when updating sub-level versions from a package.

Update samples accordingly.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

reporter_name="YEM"

reporter_url="http://ymorin.is-a-geek.org/"

reporter_comment=""